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Linking the Tropical Northern Hemisphere Pattern to the Pacific Warm Blob and Atlantic Cold Blob
Liang, Yu-Chiao1; Yu, Jin-Yi1; Saltzman, Eric S.1; Wang, Fan2
2017-11-01
发表期刊JOURNAL OF CLIMATE
ISSN0894-8755
卷号30期号:22页码:9041-9057
通讯作者Yu, Jin-Yi(jyyu@uci.edu)
摘要During 2013-15, prolonged near-surface warming in the northeastern Pacific was observed and has been referred to as the Pacific warm blob. Here, statistical analyses are conducted to show that the generation of the Pacific blob is closely related to the tropical Northern Hemisphere (TNH) pattern in the atmosphere. When the TNH pattern stays in its positive phase for extended periods of time, it generates prolonged blob events primarily through anomalies in surface heat fluxes and secondarily through anomalies in wind-induced ocean advection. Five prolonged (>= 24 months) blob events are identified during the past six decades (1948-2015), and the TNH-blob relationship can be recognized in all of them. Although the Pacific decadal oscillation and El Nino can also induce an arc-shaped warming pattern near the Pacific blob region, they are not responsible for the generation of Pacific blob events. The essential feature of Pacific blob generation is the TNH-forced Gulf of Alaska warming pattern. This study also finds that the atmospheric circulation anomalies associated with the TNH pattern in the North Atlantic can induce SST variability akin to the so-called Atlantic cold blob, also through anomalies in surface heat fluxes and wind-induced ocean advection. As a result, the TNH pattern serves as an atmospheric conducting pattern that connects some of the Pacific warm blob and Atlantic cold blob events. This conducting mechanism has not previously been explored.
DOI10.1175/JCLI-D-17-0149.1
收录类别SCI
语种英语
资助项目NSF's Climate and Large-scale Dynamics Program[AGS-1505145] ; NSF IR/D program ; NSF's Climate and Large-scale Dynamics Program[AGS-1505145] ; NSF IR/D program
WOS研究方向Meteorology & Atmospheric Sciences
WOS类目Meteorology & Atmospheric Sciences
WOS记录号WOS:000416488200011
出版者AMER METEOROLOGICAL SOC
引用统计
被引频次:32[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/157282
专题中国科学院海洋研究所
通讯作者Yu, Jin-Yi
作者单位1.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA
2.Chinese Acad Sci, Inst Oceanog, Qingdao, Peoples R China
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GB/T 7714
Liang, Yu-Chiao,Yu, Jin-Yi,Saltzman, Eric S.,et al. Linking the Tropical Northern Hemisphere Pattern to the Pacific Warm Blob and Atlantic Cold Blob[J]. JOURNAL OF CLIMATE,2017,30(22):9041-9057.
APA Liang, Yu-Chiao,Yu, Jin-Yi,Saltzman, Eric S.,&Wang, Fan.(2017).Linking the Tropical Northern Hemisphere Pattern to the Pacific Warm Blob and Atlantic Cold Blob.JOURNAL OF CLIMATE,30(22),9041-9057.
MLA Liang, Yu-Chiao,et al."Linking the Tropical Northern Hemisphere Pattern to the Pacific Warm Blob and Atlantic Cold Blob".JOURNAL OF CLIMATE 30.22(2017):9041-9057.
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